-98.02% is the change from 810 to 16
Calculation steps:
[( 16 - 810 ) ÷ 810] x 100 = -98.02%
Formula
Percentage change = [(16 - 810) / 810] x 100
Subtract the new number by the original number
16 - 810 = -794
-794 ÷ 810 = -0.980246913580247
-0.980246913580247 x 100 = -98.02%